Fall due to ice and snow (W00) ICD-10-CM
The W00 code range covers fall due to ice and snow with 17 ICD-10-CM diagnosis codes. 12 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- pedestrian on foot falling (slipping) on ice and snow
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- fall on from ice and snow involving pedestrian conveyance V00
- fall from stairs and steps not due to ice and snow W10
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category W00
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the W00 Range 17 codes · 12 billable
- W00 Fall due to ice and snowNon-billable
- W00.0 Fall on same level due to ice and snowNon-billable
- W00.0XXA Fall on same level due to ice and snow, initial encounter
- W00.0XXD Fall on same level due to ice and snow, subsequent encounter
- W00.0XXS Fall on same level due to ice and snow, sequela
- W00.1 Fall from stairs and steps due to ice and snowNon-billable
- W00.1XXA Fall from stairs and steps due to ice and snow, initial encounter
- W00.1XXD Fall from stairs and steps due to ice and snow, subsequent encounter
- W00.1XXS Fall from stairs and steps due to ice and snow, sequela
- W00.2 Other fall from one level to another due to ice and snowNon-billable
- W00.2XXA Other fall from one level to another due to ice and snow, initial encounter
- W00.2XXD Other fall from one level to another due to ice and snow, subsequent encounter
- W00.2XXS Other fall from one level to another due to ice and snow, sequela
- W00.9 Unspecified fall due to ice and snowNon-billable
- W00.9XXA Unspecified fall due to ice and snow, initial encounter
- W00.9XXD Unspecified fall due to ice and snow, subsequent encounter
- W00.9XXS Unspecified fall due to ice and snow, sequela
About the W00 Code Range
The ICD-10 code W00 covers falls caused by ice and snow, including detailed subcodes that describe the circumstances and timing of the fall. These codes document the type of fall—such as slipping on the same level, falling from stairs, or from one level to another—and specify whether it is the initial treatment, a follow-up, or long-term effects.
This section helps healthcare providers and coders accurately categorize injuries from winter-related falls. For example, if a patient experiences a slip on ice leading to a fall on a flat surface, the appropriate code might be W00.0XXA for an initial encounter. Synonyms like “fall on same level from slipping” or “fall due to slipping on ice or snow” clarify which code to use for various scenarios. Additionally, injuries from falls down stairs or other changes in level due to ice and snow have their own codes, such as W00.1 and W00.2. Unspecified falls on snow or ice are covered under W00.9, with subcodes distinguishing initial, subsequent, or sequela encounters. This granularity supports accurate medical documentation and proper injury classification.
Questions About This Page
How many billable codes are in the W00 range?
Of the 17 codes in this range, 12 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the W00 range classify?
The range classifies fall due to ice and snow. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
